Gravity: SHT31-F Digital Temperature and Humidity Sensor

The Gravity: SHT31-F Digital Temperature and Humidity Sensor delivers precise, reliable environmental readings in a compact and durable design. Built around Sensirion’s high-performance SHT31-F sensor chip, it supports I2C communication and is fully compatible with 3.3V and 5V development platforms such as Arduino, ESP32, and micro:bit.
Offering high accuracy across a wide measurement range, the sensor reads temperatures from -40°C to 125°C with ±0.2°C accuracy, and humidity levels from 0% to 100% RH with ±2% RH accuracy. Designed for demanding applications, it features built-in auto-calibration, low power consumption, and strong noise resistance for stable, long-term operation.



A pre-applied IP67-rated PTFE protective membrane shields the sensing elements from dust, moisture, and environmental contaminants, making it ideal for outdoor or industrial monitoring where exposure to water spray or high dust levels is expected. Despite this protection, the sensor maintains fast response times and accurate measurements.
The module includes a standard Gravity I2C interface and comes with both a Gravity 4-pin I2C cable and 2.54mm goldpin headers, allowing for quick integration into breadboards or final embedded systems.

Quick Spec

• Operating Voltage: 3.3V to 5.5V
• Current Consumption: < 1.5mA
• Communication: I2C (Gravity-4P interface)
• Temperature Range: -40°C to 125°C
• Temperature Accuracy: ±0.2°C
• Humidity Range: 0% to 100% RH
• Humidity Accuracy: ±2% RH (at 25°C)
• IP Rating: IP67 (Dust/water resistant membrane)
• Dimensions: 32 x 22 mm
• Mounting Hole Diameter: 3 mm
• Mounting Hole Spacing: 15 mm

Dimensions

Pinout

• SDA - Data line
• SCL - Clock Line
• GND - Negative
• VCC - Positive
• INT - Alarm Interrupt
• RST - Reset

Wiring Diagram

Resources

• Product Page
• Product Wiki
• Schematic
• Mechanical Diagram
• SHT3x Datasheet
• SHT3X Handling Instructions

Shipping List

• 1 x Gravity: SHT31-F Digital Temperature and Humidity Sensor
• 1 x Gravity-4P I2C/UART Sensor Connector
• 1 x Black 2.54-2P Single Row